2243155547 has 2 divisors, whose sum is σ = 2243155548. Its totient is φ = 2243155546.

The previous prime is 2243155543. The next prime is 2243155571. The reversal of 2243155547 is 7455513422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2243155547 - 2² = 2243155543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2243155547.

It is not a weakly prime, because it can be changed into another prime (2243155543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121577773 + 1121577774.

It is an arithmetic number, because the mean of its divisors is an integer number (1121577774).

Almost surely, 2^2243155547 is an apocalyptic number.

2243155547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243155547 is an equidigital number, since it uses as much as digits as its factorization.

2243155547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 38.

The square root of 2243155547 is about 47361.9630822034. The cubic root of 2243155547 is about 1309.0406407607.

Adding to 2243155547 its reverse (7455513422), we get a palindrome (9698668969).

The spelling of 2243155547 in words is "two billion, two hundred forty-three million, one hundred fifty-five thousand, five hundred forty-seven".